TableHeadings
 Usage
• TableHeadings is an option for TableForm and MatrixForm which gives the labels to be printed for entries in each dimension of a table or matrix.
Notes
• TableHeadings -> None gives no labels in any dimension. • TableHeadings -> Automatic gives successive integer labels for each entry in each dimension. • TableHeadings -> {{ ,  , ... }, ... } gives explicit labels for each entry. • The labels can be strings or other Mathematica expressions. • The labels are placed as headings for rows or columns. • New in Version 2.
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